Open Enrollment, FSAs and Leave of Absence

[marcediag]

If an employee is on a leave of absence (medical or personal) during the Open Enrollment period, is there an IRS regulation that says that they cannot enroll in HCFSA and/or DCFSA for the upcoming benefit plan year until they return from leave?

[JCJD]

Associates cannot enroll in DCFSA while on leave.